ES340118A1 - Receiver employing correlation techniques - Google Patents

Receiver employing correlation techniques

Info

Publication number
ES340118A1
ES340118A1 ES340118A ES340118A ES340118A1 ES 340118 A1 ES340118 A1 ES 340118A1 ES 340118 A ES340118 A ES 340118A ES 340118 A ES340118 A ES 340118A ES 340118 A1 ES340118 A1 ES 340118A1
Authority
ES
Spain
Prior art keywords
signal
source
coupled
frequency
amplitude
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES340118A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES340118A1 publication Critical patent/ES340118A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/02—Details
    • H03D1/04—Modifications of demodulators to reduce interference by undesired signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Improvements in a correlation receiver for detecting a first signal surrounded by noise, said signal having a characteristic of predetermined amplitude and a carrier frequency whose value is subject to an interfering frequency deviation, comprising: A first source of said first signal; A second source of a reference signal having a frequency equal to the undifferentiated value of said carrier frequency; Frequency converter means coupled to said first and second sources; An amplitude modulator coupled to said first source and said converting means; and a first correlator coupled to said modulator and said second source to produce an output signal proportional to said amplitude characteristic of said first signal. (Machine-translation by Google Translate, not legally binding)
ES340118A 1966-05-03 1967-05-03 Receiver employing correlation techniques Expired ES340118A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54727666A 1966-05-03 1966-05-03

Publications (1)

Publication Number Publication Date
ES340118A1 true ES340118A1 (en) 1968-06-01

Family

ID=24184048

Family Applications (1)

Application Number Title Priority Date Filing Date
ES340118A Expired ES340118A1 (en) 1966-05-03 1967-05-03 Receiver employing correlation techniques

Country Status (4)

Country Link
US (1) US3502989A (en)
BE (1) BE697927A (en)
ES (1) ES340118A1 (en)
NL (1) NL6706186A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA984068A (en) * 1972-08-10 1976-02-17 Alexander D. Proudfoot Method and apparatus for detecting the presence of signal components of predetermined frequency in a multi-frequency signal
US3896442A (en) * 1973-09-04 1975-07-22 Us Army Correlation processor
US4091367A (en) * 1974-02-28 1978-05-23 Robert Keith Harman Perimeter surveillance system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157781A (en) * 1960-10-27 1964-11-17 Thompson Ramo Wooldridge Inc Signal correlation system
US3057960A (en) * 1961-03-13 1962-10-09 Bell Telephone Labor Inc Normalized sound control system
NL276870A (en) * 1961-04-06

Also Published As

Publication number Publication date
US3502989A (en) 1970-03-24
NL6706186A (en) 1967-11-06
BE697927A (en) 1967-11-03

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